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Finding the Fourth Proportional to 323,937.88, 486,328.73 and 217,797.31

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Solution

The fourth proportional to 323,937.88, 486,328.73 and 217,797.31 is: 326,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,937.88 : 486,328.73 = 217,797.31 : x
  2. Step 2: Convert to fraction form
    323,937.88/486,328.73 = 217,797.31/x
  3. Step 3: Cross multiply
    323,937.88x = 486,328.73 × 217,797.31
  4. Step 4: Simplify right side
    323,937.88x = 105,921,087,790.71
  5. Step 5: Solve for x
    x = 105,921,087,790.71/323,937.88
  6. Step 6: Final answer
    x = 326,979.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.